The import can optionally be removed if Java’s Scanner class explicitly references the package. This example also demonstrates how to use one instance of the Scanner class multiple times within the ...

Inheritance and composition are two programming techniques developers ... Now let’s try the same example using composition: import java.util.HashSet; import java.util.Set; public class ...

Good programmers need to create code that efficiently solves problems, using various methods. A popular academic exercise is to create a program that determines if a number or String is a palindrome.